Atom Models
Ionic Bonding
Covalent bonding
Substances
Calculations
100

The 3 points John Dalton made regarding atoms in 1803

1. All substances are made of atoms, which cannot be created or destroyed.

2. All atoms of the same element are exactly alike

3. Atoms join together to make new substances

100

The result of a metal + non-metal bonding

Metal loses electrons, becomes positive (cation)

Non-metal gains electrons, becomes negative (anion)

100

Where is Covalent bonding common?

In Non-mettalic elements and non metal compounds

100

Properties of ionic compounds

- Made up of a metal and a non-metal

- High melting and boiling points

- conduct electricity as liquids, not as solids

- often dissolve in water

100

How to calculate empirical formula

1. mass / RAM

2. divide both by the smallest

3. Find the ratio

200

What was the name given to J.J Thompson's atomic model of atoms.

What is the Plum Pudding Model?
200

An atom or group of atoms that is positively or negatively charged 

What is an ion?

200

Name an example of a large covalent structure 

Diamond, silicon oxide

200

Properties of simple molecular structures 

- Low melting and boiling points 

- They do not conduct electricity

- Many are insoluble, others aren't

200
How to calculate concentration of solutions in gdm3

mass of solute / volume 

300

What was the machine used by Thomson that was the basis of his model

A cathode-ray-tube

300

A large structure of ions, held together by strong electrostatic forces

An ionic compound (in lattice shape)

300
Name a characteristic of covalent bonds

Strong

300

Properties of Metal

- insoluble in water (some may react)

- high melting and boiling points 

- conduct heat and electricity

300

What is avargardo's number

6.02 x 1023

400

What experiment did Rutherford conduct that proved that atoms are made up of mostly empty space?

He shot a beam of positively charged particles at a sheet of gold foil

400

What happens to each group during ionic bonding?

G1 (M) - lose 1 electron, form +1 ion

G2 (M) - lose 2 electron, form +2 ion

G6 (NM) - gain 2 electron, form -2 ion

G7 (NM) - gain 1 electron, form - 1 ion

400

Properties of Diamond and Graphite

DIAMOND

- High melting point

- does not conduct electricity

GRAPHITE - 

- Soft and slippery

- can conduct electricity

500

The relative charge and mass of each component of the atom 

Proton  - +1/1

Neutron - 0/1

Electron - -1 / 1/1836

500
How do you calcute the Atomic and Nucleon number?

Atomic = Proton Number

Nucleon = Proton + Neutron 

500

Properties of Giant Covalent Structures

- very high melting points

- some conduct electricity

M
e
n
u